PLEASE HELP ME WITH THISISISISIS 5^4 x (5)^4 Simplify that expression, write using positive exponents

How to do this , and can some one explain

You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?

Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?